Answer:
s = 53
Step-by-step explanation:
We know that the three angle measures in a triangle add up to 180°. so…
(s - 20°) + 2s + 41° = 180°
Step 1. Subtract 41 from both sides
(s - 20°) + 2s = 139°
Step 2. Combine like terms
3s - 20 = 139°
Step 3. Add 20 from both sides
3s = 159
Step 4. Solve for s
s = 159/3
s = 53
